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Patented April 7,1874.

EL s Dn nu MddIings-Purers.

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UNITED A ST ORVILLE M. MOR-SE, OF OSWEGO, NFV YORK.

IMPROVEMENT IN MIDLINGS-PURIFIERS.

Specification forming part ot Letters Patent N0. 49,507, dated A1 ril '7, lt7dg application filed "v Fel Inary 13, 1874.

To all whom it may concern:

Beit known that I, ORvILLE M. Monsn, of the city and county of Oswego, in the State of New York, have invented certain Improvements in Middlings-Puriiiers, of which the following is a specification:

My machine consists generally of a cylindrical case, provided with longitudinal airinlets in the lower portion thereof, and constructed withan enlargement or extension at or near the top, which communicates with the eye of a fan, so as to induce an air-current upward through the case, andan elevating-wheelA revolving within the case, composed of a series of longitudinal boards arranged around its periphery somewhat after the manner of the wings of afan or the floats or buckets of a water-wheel. These wings or boards may be secured between two circular heads or disks provided with journals turning' insuitable bearingsin the ends of the case, or they may be attached to the ends of radial arms projecting from a horizontal shaft. These buckets or Wings should be made curved in cross section, or with a ledge or flange at the outer edge, so as to form buckets` that will hold the material and prevent it from escaping over the outer edge as it is elevated. The case and elevating-wheel are arranged in a slightly-inclined position in the manner of an ordinary ilourbolt.

The general operation of my machine is as follows: rllhe unpuriied middlings are fed into the upper end ofthe casein any suitable manner, so as to fall upon the buckets which carry the material upward to a certain height, when it is discharged from the inner edge of the now inclined bucket,.and falls downward upon the succeeding buckets, which, in turn, empty it upon the next, and so on, the material traveling spirally around and around in the machine until it finally reaches the tail of the machine, where it is allowed to escape. In the descent `of the material, as it is repeatedly discharged in a thin sheet from the buckets, it passes through the air-current leading to the fan which separatesthe impurities and carries them upward to the fan, whilev the granules of middlings descend, the material being repeatedly subjected to this separating air-current until it reaches the tail of the machine,

by which time the middlings are divested of the impurities in a most thorough manner.

In the accompanying drawings, Figure l is a central vertical cross section of my machine. Fig. 2 is a central longitudinal vertical section thereof. Fig. 3 isan end elevation of the upper head of feed end of the wheel. Fig. 4 is a segmental section thereof inline a', Fig. 3; Fig. 5, a perspective view of the head of the wheel with a portion of the feeding-case broken away.

Like letters of reference designate like parts in each of the figures.

A is the case of the machine, and a the eX- tension thereof; B, the suction or exhaust fan;

and o c', the air-inlet openings in the lower' portion of the case. D is the elevatingwheel, and d d the buckets or wings thereof'. These buckets. are shown attached at their ends to twoheads or disks, E Ef, which are keyed to a shaft or provided with journals f, having' bearings in the ends of the case. The wings or buckets are shown so constructed and ar ranged as to prevent the material, after it has been fed into the buckets, from falling between them into the bottom of the'case as the Wheel revolves, the material discharged from thel inner edge of any bucket falling upon the succeeding buckets. The outer edges of the buckets are shown provided with a ange, d', which prevents the material on the buckets from being discharged or sliding off of the outer edge of the buckets as the wheel revolves and changes the position and inclination of the buckets. The head E is shown provided on its outer side with a projecting feed-chamber,

'.I, formed by a disk, t', and circular flange il,

secured to the head with a central opening in the disk for the feed-spout 2. The head E has openings, 7c, arranged near or between the buckets of the wheel, and provided with inclined boards or buckets k1- extending from the head through the feeding-chamberto the outer disk t' thereof, and slanting inwardly, so as to form an acute angle with the direction of the movement of the wheel, so that as the wheel revolves said scoops will take the material from the bottom of the feed-chamber and raise the same on the elevating side of the wheel until they have assumed an inclination which will cause the material scooped up to from.

tail end is provided with holes l, made at the junction of several of the buckets with the head, and a suitable space is left between the latter and the outer case, so that the pured middlings escape into the bottom of the case, and thence into a spout, m, leading therelf desired, the openings Zmay be provided with outwardly-inclined scoops or boards l', arranged on the inner side of the head E. The material may, however, be fed into the machine and on the buckets through a spout,

and discharged therefrom in the same manner as meal is fed into an ordinary flour-bolt and the refuse discharged. The air is let in at two points at the right and left side of the bottom 0f the case through openings c o. The opening c at the left side is formed by hinging a segment, a', of the case, as shown, the lower edge of which can be adjusted out and in, so as to leave any desired width of inlet for the air. The opening c consists of a longitudinal slot, the size of which is regulated by an adjustable hinged Hap, q. The wheels revolve in the direction indicated by the central arrow l. rlhe middlings discharged through the openings k onto the buckets, as before de scribed, are carried upward by the buckets as they rise, and as the buckets change their inclination the material begins to slide therefrom, as indicated at s, in Fig. 1, when it is subjected to the action of the upward air-current which carries the impurities to the fan, while the heavier particles or middlings descend and fall onto the succeeding bucket, as hereinbefore described. The opening c is designed to admit a suflicient amount of air to prevent the formation of any eddy on the descending side of the wheel, and to carry upward any impurities which may have fallen out of the main air-current. The anges d of the buckets should snugly fit the case at the point t, where it may be lined with sheepskin or other material to insure a tight fit and pre- A vent the passage of the air outside of the buckets to the fan.

By dispensing with the use of wire-cloth as employed in reel-bolts, I am enabled to construct my machine at a comparatively small cost, while the air which freely enters at the required points, and thence passes directly across the case, and through the material as it successively falls from one bucket to the other acts without obstruction and with the greatest efciency in separating and removing the impurities.

What I claim as my invention is- The combination, With the case A, communicating at its top with the eye of a fan, of an elevating-wheel composed of extended open buckets d, which successively elevate the inaterial and discharge the same from one bucket to the other, whereby the material is repeatedly subjected to the separating action of the aircurrent, substantially as hereinbefore set forth.

ORVILLE M. MORSE.

Witnesses:

JNO. J. BONNER, EDWARD WILHELM. 

